CN111463823A - Permanent magnet shaft generator switch control system for side-push power supply - Google Patents
Permanent magnet shaft generator switch control system for side-push power supply Download PDFInfo
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- CN111463823A CN111463823A CN201911226163.0A CN201911226163A CN111463823A CN 111463823 A CN111463823 A CN 111463823A CN 201911226163 A CN201911226163 A CN 201911226163A CN 111463823 A CN111463823 A CN 111463823A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
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Abstract
The invention discloses a permanent magnet shaft generator switch control system for side-push power supply, which comprises a side-push control system, a main distribution board, a shaft generator control system and an air switch for supplying power to a power grid by a shaft generator. The bow-thrusting control system sends out a starting signal, receives a starting permission signal, starts the bow thrusting and feeds back the state of the bow thrusting. The main distribution board receives shaft power and supplies power to the side push, and meanwhile, the side push starting is realized and the problem that a permanent magnet shaft with a generator switch is tripped in the side push starting process is solved through the PMS and the side push starting permission signal conversion circuit and time-sharing logic processing. The shaft generator control system is matched with a shaft generator power supply switch ACB to supply power to a power grid.
Description
Technical Field
The invention belongs to the ship power supply control technology, and particularly relates to a permanent magnet shaft generator switch control circuit design for side-thrust power supply of a double-fuel ship.
Background
In a new generation of ten-thousand-ton-class dual-fuel cargo ship, a power station is provided with 3 dual-fuel generators and a permanent magnet type propeller shaft driven by a dual-fuel host, and meanwhile, the ship is provided with 1000KW bow thrusting. Permanent magnetism axle area generator has light in weight, and is efficient, and vibrations are little, advantages such as no wearing and tearing part, and the cooperation variable frequency control system uses, can be in the rotational speed within range stable work of broad for boats and ships become more nimble towards the centre, consequently receive more and more receiving shipping enterprise's favor. According to the calculation of the power load of each working condition of the ship, 3 dual-fuel generators and a permanent magnet shaft generator are needed to be used for supplying power during the use process of the bow thrusters. However, in the process of starting the bow thrusters, the situation that the power supply switch of the shaft generator is abnormally tripped due to abnormal triggering of the frequency converter protection function of the shaft generator caused by abnormal voltage abnormality of the direct-current busbar of the frequency converter due to the increase of the voltage drop of the power grid occurs, and the parallel operation of four generators cannot be ensured to start the bow thrusters. Although the power use can be reduced by side thrust, the thrust is reduced after the power is reduced, and the steering safety of the ship is influenced.
Disclosure of Invention
The invention aims to solve the problem of tripping of a permanent magnet shaft generator switch in a side-push starting process, and provides a side-push starting system switch protection circuit design for supplying power to a permanent magnet shaft generator of a double-fuel ship.
The technical scheme is as follows:
a permanent magnetism axle takes generator switch control system for side pushes away power supply, it includes side pushes away control system, main distribution board, axle takes generator control system, and is specific:
the lateral thrust control system comprises a lateral thrust control unit (1) and a lateral thrust starter (2), wherein the lateral thrust control unit (1) sends an operation command to the lateral thrust starter (2), the lateral thrust starter (2) sends a state feedback signal to the lateral thrust control unit (1), and the lateral thrust starter (2) is connected with a bow lateral thrust;
-the shaft generator control system comprises a shaft generator frequency converter (3), a shaft generator control and protection module (4) and a first shaft generator power supply ACB (5); the shaft generator frequency converter (3) is connected with the shaft generator through a first shaft generator power supply ACB (5), the shaft generator control and protection module (4) sends an ACB control command to the first shaft generator power supply ACB (5), and the shaft generator control and protection module (4) collects frequency converter signals of the shaft generator frequency converter (3) and sends the control command;
the main distribution board comprises a power station management system PMS (6), a side-push starting permission signal conversion circuit (7), a power supply busbar (8), a molded case circuit breaker MCCB (9) and a second shaft-driven generator power supply ACB (10), and the power station management system PMS (6) is connected with the side-push starting permission signal conversion circuit (7); one end of a molded case circuit breaker MCCB (9) is connected with a power supply bus bar (8), and one end of a second shaft with a generator power supply ACB (10) is connected with the power supply bus bar (8);
the other end of the second shaft generator power supply ACB (10) is connected with a power generation frequency converter (3) through a power cable to receive the electric energy of the shaft generator on one hand, and connected with a shaft generation control and protection module (4) to receive the ACB control command sent by the shaft generation control and protection module on the other hand, and the shaft generation control and protection module (4) and the shaft generation frequency converter (3) are matched with the first shaft generator power supply ACB (5) and the second shaft generator power supply ACB (10) to supply power to a power supply busbar (8); the other end of the molded case circuit breaker MCCB (9) is connected with the side push starter (2) to supply power to the side push starter (2); the power station management system PMS (6) is connected with the side push control unit (1) to receive the side push control system starting request command sent by the side push control unit, the power grid power utilization surplus is judged through the power station management system PMS (6), and a side push starting permission signal is sent to the side push starting permission signal conversion circuit (7); the side-push starting permission signal conversion circuit (7) is connected with the shaft transmission control and protection module (4) and transmits a shaft transmission frequency converter protection function override signal in the side-push starting process; the side-push starting permission signal conversion circuit (7) is also connected with the side-push starter (2), on one hand, the side-push starting permission signal conversion circuit (7) sends out a side-push starting permission signal to the side-push starter (2) in a delayed mode, and on the other hand, the side-push starter (2) feeds back a side-push running signal to the side-push starting permission signal conversion circuit (7).
Preferably, the side-push starting permission signal conversion circuit (7) sends a permission starting command to the side-push control system and the shaft generator control system after different delay time lengths through time-sharing logic processing according to a starting permission signal of the power station management system PMS (6), so that side-push starting is realized and the problem of tripping of a permanent magnet shaft generator switch in the side-push starting process is solved.
Preferably, the circuit structure comprises a main line, a PMS system input line, a signal admission line and a switch protection function override signal transmission line, specifically:
-a main line: comprises a plurality of loops:
starting a request loop: the side-push control system starting request contact HC10 and an electromagnetic coil of the first relay are connected in series in the power supply;
(II) starting a permission loop:
1. a normally closed contact of a sixth relay;
2. the electromagnetic coil of the second relay, the electromagnetic coil of the third relay and the electromagnetic coil of the fourth relay are connected in parallel;
3. the normally open contact of the first relay is connected in series with the manual side-push starting permission button of the main distribution board and then is connected in parallel with the normally open contact of the second relay; the main distribution board manual side-push starting permission button is connected in parallel with a BTP normally open contact of the power station management system PMS;
the above 3 parts are connected in series in a power supply;
(III) running a loop: the side-push operation signal switch and an electromagnetic coil of the fifth relay are connected in series in a power supply;
(IV) a time delay loop: the normally open contact of the second relay and the electromagnetic coil of the sixth relay are connected in series in the power supply;
-PMS system input line:
a normally open contact of the first relay controls the PMS of the power station management system to start;
-allowing signals to the bow thrusting line:
a normally closed contact of the fifth relay and a normally open contact of the fourth relay are connected in series to jointly control an allowable signal to the bow side;
-switch protection override signal transmission line:
a normally open contact of the second relay and a normally closed contact of the third relay are connected in series to jointly control the side push starting process to send a shaft transmission frequency converter protection function override signal to a shaft belt generator control system;
the third relay, the fourth relay and the sixth relay are time relays.
Preferably, the logic of the circuit structure is as follows:
the side push control system sends a side push starting request signal HC10, and the HC10 contact is closed;
the first relay is electrified to act, a normally open contact of the first relay is closed, and the normally open contact is sent to the PMS input module;
the PMS system receives the closing of the normally open contact of the first relay, and the system judges whether the remaining power of the power grid meets the power requirement of bow thrusting: if not, the system automatically starts a standby generator; if yes, the system outputs a PMS system output module BTP signal to be closed.
Preferably: after the BTP signal is closed, the second relay, the third current collector and the fourth relay are powered; the normally open contact of the second relay is closed and is used for starting the self-protection of the allowable switching circuit; and meanwhile, the normally open contact of the second relay is closed and connected in series with the normally closed contact of the third relay, and the normally closed contact is connected to a control protection module of the shaft generator control system and used for overriding the abnormal protection function of the direct-current busbar voltage of the frequency converter of the shaft generator, so that the air switch of the shaft generator is not tripped in the whole starting process of side pushing, and the function is completed until the side pushing is started.
Preferably: after the BTP signal is closed, the normally open contact of the second relay is closed, the sixth relay starts timing, after one minute of timing is finished, the normally closed contact of the sixth relay is opened, and the second relay, the third current collector and the fourth relay lose power; the normally open contact of the second relay is disconnected, and the normally open contact of the third relay is restored to the closed state; the override function caused by single-point fault of the third relay is prevented from being kept all the time, the abnormal protection function of the direct-current busbar voltage of the shaft belt generator frequency converter in the side-pushing normal operation process is ensured to be effective, and the safety of the system is improved.
Preferably: the normally open contact of the fourth relay is closed after being delayed for 3 seconds and is connected with the normally closed contact of the fifth relay in series, so that the control protection module of the shaft generator control system has 3 seconds of time to ensure that the protection function of tripping a power supply switch of the shaft generator caused by abnormal triggering of the direct-current busbar voltage of the frequency converter of the shaft generator is overridden before the actual starting of the side thrust; after the 3-second delay, the side-push starting is carried out, the side-push starting process is 10 seconds, the delay of the third relay is set to be 20 seconds, namely the normally closed contact of the third relay is disconnected after 20 seconds, the override of the protection function of tripping the shaft generator power supply switch triggered by the abnormal direct-current bus bar voltage of the shaft generator frequency converter is removed, and the air switch of the shaft generator is ensured not to be tripped in the side-push starting process.
Preferably: after the side push normally operates, a side push operation signal BTR sent by the side push control system is closed, the fifth relay is electrified to act, the normally closed contact of the fifth relay is disconnected, and a side push starting permission signal of the side push control system is cancelled.
The invention has the advantages of
The side-push starting command supplied by the permanent magnet shaft generator is sent to the main distribution board, the side-push starting permission command is sent out through power judgment of the PMS, the side-push starting permission signal conversion circuit carries out time-sharing logic processing on the command and sends the command to the shaft generator control system and the side-push control system respectively, the protection function that a shaft generator power supply switch is tripped due to abnormal direct-current busbar voltage of a shaft generator frequency converter in the side-push starting process is controlled, the fact that a power grid can provide enough energy for side-push to operate is guaranteed, and running safety of a ship is guaranteed.
Drawings
Fig. 1 is a single line diagram of the system of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
The invention is further illustrated by the following examples, without limiting the scope of the invention:
with reference to fig. 1, a permanent magnet shaft generator switch control system for side-push power supply includes a side-push control system, a main distribution board, and a shaft generator control system, specifically:
the lateral thrust control system comprises a lateral thrust control unit 1 and a lateral thrust actuator 2, wherein the lateral thrust control unit 1 sends an operation command to the lateral thrust actuator 2, the lateral thrust actuator 2 sends a state feedback signal to the lateral thrust control unit 1, and the lateral thrust actuator 2 is connected with a bow lateral thrust;
the shaft generator control system comprises a shaft generator frequency converter 3, a shaft generator control and protection module 4 and a first shaft generator power supply ACB 5; the shaft generator frequency converter 3 is connected with a shaft generator through a first shaft generator power supply ACB5, the shaft generator control and protection module 4 sends an ACB control command to a first shaft generator power supply ACB5, and the shaft generator control and protection module 4 carries out frequency converter signal acquisition on the shaft generator frequency converter 3 and sends a control command;
the main power distribution board comprises a power station management system PMS6, a side-push startup enabling signal conversion circuit 7, a power supply busbar 8, a molded case circuit breaker MCCB9 and a second axis generator power supply ACB10, and the power station management system PMS6 is connected with the side-push startup enabling signal conversion circuit 7; one end of the molded case circuit breaker MCCB9 is connected with a power supply bus bar 8, and one end of the second shaft band generator power supply ACB10 is connected with the power supply bus bar 8;
the other end of the second shaft belt generator power supply ACB10 is connected with the shaft generator power generation frequency converter 3 through a power cable to receive the electric energy of the shaft belt generator on the one hand, and connected with the shaft generator control and protection module 4 to receive the ACB control command sent by the shaft generator control and protection module 3 on the other hand, and the shaft generator control and protection module 4 and the shaft generator power generation frequency converter 3 are matched with the first shaft belt generator power supply ACB5 and the second shaft belt generator power supply ACB10 to supply power to the power supply busbar 8; the other end of the molded case circuit breaker MCCB9 is connected with the side push starter 2 to supply power to the side push starter 2; the power station management system PMS6 is connected with the side push control unit 1 to receive the side push control system starting request command sent by the side push control unit, judges the power utilization surplus of the power grid through the power station management system PMS6, and sends a side push starting permission signal to the side push starting permission signal conversion circuit 7; the side-push starting permission signal conversion circuit 7 is connected with the shaft transmission control and protection module 4 and transmits a shaft transmission frequency converter protection function override signal in the side-push starting process; the side push starting permission signal conversion circuit 7 is also connected with the side push starter 2, on one hand, the side push starting permission signal conversion circuit 7 sends out a side push starting permission signal to the side push starter 2 in a delayed mode, and on the other hand, the side push starter 2 feeds back a side push operation signal to the side push starting permission signal conversion circuit 7.
The side-push starting permission signal conversion circuit 7 sends a permission starting command to the side-push control system and the shaft generator control system after different delay time lengths through time-sharing logic processing according to a starting permission signal of the power station management system PMS6, so that the side-push starting is realized, and the problem of tripping of a permanent magnet shaft generator switch in the side-push starting process is solved.
Referring to fig. 2, a circuit design of a permanent magnet shaft generator switch control system for side-push power supply. The design of the switching circuit of the side-push starting system based on the power supply of the permanent magnet shaft generator specifically comprises the following logic functions:
the bow-thrusting control system sends a thrusting start request signal HC10, HC10 contact closure.
And the first relay is electrified to act, and the 2 and 10 normally open contacts of the first relay are closed and sent to the PMS system input module.
And the PMS system receives the closing of the 2 and 10 normally open contacts of the first relay, and the system judges whether the residual power of the power grid meets the power requirement of bow thrusting. If not, the system automatically starts a standby generator; if yes, the system outputs a PMS system output module BTP signal to be closed.
After the BTP signal is closed, the second relay, the third relay and the fourth relay are powered on. The normally open points 5 and 9 of the second relay are closed and used for starting the self-protection of the allowable switching circuit; meanwhile, the normally open points 5 and 9 of the second relay are closed and the normally closed points 15 and 16 of the third relay are connected in series and are connected to a control protection module of the shaft generator control system, so that the function of protecting the abnormal voltage of the direct-current busbar of the frequency converter of the shaft generator from overriding is realized, the air switch of the shaft generator is not tripped in the whole starting process of side pushing, and the function is completed until the side pushing is started.
After the BTP signal is closed, the 2,10 normally open points of the second relay are closed, and the sixth relay starts to time. And after the one-minute timing is finished, the 15 and 16 normally-closed points of the sixth relay are disconnected, and the second relay, the third relay and the fourth relay lose power. The 5,9 normally-open point of the second relay is opened, and the 15,16 contacts of the third relay are restored to the closed state. The override function caused by single-point fault of the third relay is prevented from being kept all the time, the abnormal protection function of the direct-current busbar voltage of the shaft belt generator frequency converter in the side-pushing normal operation process is ensured to be effective, and the safety of the system is improved.
And the contacts 15 and 16 of the fourth relay are closed in a delayed mode for 3 seconds and are connected with the contacts 1 and 9 of the fifth relay in series, so that the control protection module of the shaft generator control system has 3 seconds before the side push is actually started, and the protection function of the shaft generator power supply switch tripping triggered by the abnormal direct-current busbar voltage of the frequency converter of the shaft generator is overridden. After the 3-second delay, the lateral pushing is started. The side-push starting process is 10 seconds, the time delay of the third relay is set to be 20 seconds, namely after 20 seconds, the normally closed contacts 15 and 16 of the third relay are disconnected, the override of the protection function that the shaft generator power supply switch is tripped by abnormal direct-current busbar voltage of the shaft generator frequency converter is removed, and the air switch of the shaft generator is not tripped in the side-push starting process.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (8)
1. The utility model provides a permanent magnetism axle takes generator switch control system for side pushes away power supply which characterized in that it includes side pushes away control system, main distribution board, axle takes generator control system, and is specific:
the lateral thrust control system comprises a lateral thrust control unit (1) and a lateral thrust starter (2), wherein the lateral thrust control unit (1) sends an operation command to the lateral thrust starter (2), the lateral thrust starter (2) sends a state feedback signal to the lateral thrust control unit (1), and the lateral thrust starter (2) is connected with a bow lateral thrust;
-the shaft generator control system comprises a shaft generator frequency converter (3), a shaft generator control and protection module (4) and a first shaft generator power supply ACB (5); the shaft generator frequency converter (3) is connected with the shaft generator through a first shaft generator power supply ACB (5), the shaft generator control and protection module (4) sends an ACB control command to the first shaft generator power supply ACB (5), and the shaft generator control and protection module (4) collects frequency converter signals of the shaft generator frequency converter (3) and sends the control command;
the main distribution board comprises a power station management system PMS (6), a side-push starting permission signal conversion circuit (7), a power supply busbar (8), a molded case circuit breaker MCCB (9) and a second shaft-driven generator power supply ACB (10), and the power station management system PMS (6) is connected with the side-push starting permission signal conversion circuit (7); one end of a molded case circuit breaker MCCB (9) is connected with a power supply bus bar (8), and one end of a second shaft with a generator power supply ACB (10) is connected with the power supply bus bar (8);
the other end of the second shaft generator power supply ACB (10) is connected with a power generation frequency converter (3) through a power cable to receive the electric energy of the shaft generator on one hand, and connected with a shaft generation control and protection module (4) to receive the ACB control command sent by the shaft generation control and protection module on the other hand, and the shaft generation control and protection module (4) and the shaft generation frequency converter (3) are matched with the first shaft generator power supply ACB (5) and the second shaft generator power supply ACB (10) to supply power to a power supply busbar (8); the other end of the molded case circuit breaker MCCB (9) is connected with the side push starter (2) to supply power to the side push starter (2); the power station management system PMS (6) is connected with the side push control unit (1) to receive the side push control system starting request command sent by the side push control unit, the power grid power utilization surplus is judged through the power station management system PMS (6), and a side push starting permission signal is sent to the side push starting permission signal conversion circuit (7); the side-push starting permission signal conversion circuit (7) is connected with the shaft transmission control and protection module (4) and transmits a shaft transmission frequency converter protection function override signal in the side-push starting process; the side-push starting permission signal conversion circuit (7) is also connected with the side-push starter (2), on one hand, the side-push starting permission signal conversion circuit (7) sends out a side-push starting permission signal to the side-push starter (2) in a delayed mode, and on the other hand, the side-push starter (2) feeds back a side-push running signal to the side-push starting permission signal conversion circuit (7).
2. The permanent magnet shaft generator switch control system for side-push power supply according to claim 1, wherein the side-push start-up enabling signal conversion circuit (7) sends the start-up enabling command to the side-push control system and the shaft generator control system after different delay time lengths through time-sharing logic processing according to the start-up enabling signal of the power station management system PMS (6), so as to realize side-push start-up and solve the problem of permanent magnet shaft generator switch tripping in the side-push start-up process.
3. The switch control system of the permanent magnet shaft generator for the thrust power supply according to claim 1, wherein the circuit structure comprises a main line, a PMS system input line, a signal allowing line to the thrust side and a switch protection function override signal transmission line, and specifically:
-a main line: comprises a plurality of loops:
starting a request loop: the side-push control system starting request contact HC10 and an electromagnetic coil of the first relay are connected in series in the power supply;
(II) starting a permission loop:
1. a normally closed contact of a sixth relay;
2. the electromagnetic coil of the second relay, the electromagnetic coil of the third relay and the electromagnetic coil of the fourth relay are connected in parallel;
3. the normally open contact of the first relay is connected in series with the manual side-push starting permission button of the main distribution board and then is connected in parallel with the normally open contact of the second relay; the main distribution board manual side-push starting permission button is connected in parallel with a BTP normally open contact of the power station management system PMS;
the above 3 parts are connected in series in a power supply;
(III) running a loop: the side-push operation signal switch and an electromagnetic coil of the fifth relay are connected in series in a power supply;
(IV) a time delay loop: the normally open contact of the second relay and the electromagnetic coil of the sixth relay are connected in series in the power supply;
-PMS system input line:
a normally open contact of the first relay controls the PMS of the power station management system to start;
-allowing signals to the bow thrusting line:
a normally closed contact of the fifth relay and a normally open contact of the fourth relay are connected in series to jointly control an allowable signal to the bow side;
-switch protection override signal transmission line:
a normally open contact of the second relay and a normally closed contact of the third relay are connected in series to jointly control the side push starting process to send a shaft transmission frequency converter protection function override signal to a shaft belt generator control system;
the third relay, the fourth relay and the sixth relay are time relays.
4. A switch control system for a permanent magnet shaft generator for side-push power supply according to claim 3, characterized in that the logic of the circuit configuration is as follows:
the side push control system sends a side push starting request signal HC10, and the HC10 contact is closed;
the first relay is electrified to act, a normally open contact of the first relay is closed, and the normally open contact is sent to the PMS input module;
the PMS system receives the closing of the normally open contact of the first relay, and the system judges whether the remaining power of the power grid meets the power requirement of bow thrusting: if not, the system automatically starts a standby generator; if yes, the system outputs a PMS system output module BTP signal to be closed.
5. The system of claim 4, wherein the permanent magnet shaft generator switch control system for side-push power supply comprises: after the BTP signal is closed, the second relay, the third current collector and the fourth relay are powered; the normally open contact of the second relay is closed and is used for starting the self-protection of the allowable switching circuit; and meanwhile, the normally open contact of the second relay is closed and connected in series with the normally closed contact of the third relay, and the normally closed contact is connected to a control protection module of the shaft generator control system and used for overriding the abnormal protection function of the direct-current busbar voltage of the frequency converter of the shaft generator, so that the air switch of the shaft generator is not tripped in the whole starting process of side pushing, and the function is completed until the side pushing is started.
6. The system of claim 4, wherein the permanent magnet shaft generator switch control system for side-push power supply comprises: after the BTP signal is closed, the normally open contact of the second relay is closed, the sixth relay starts timing, after one minute of timing is finished, the normally closed contact of the sixth relay is opened, and the second relay, the third current collector and the fourth relay lose power; the normally open contact of the second relay is disconnected, and the normally open contact of the third relay is restored to the closed state; the override function caused by single-point fault of the third relay is prevented from being kept all the time, the abnormal protection function of the direct-current busbar voltage of the shaft belt generator frequency converter in the side-pushing normal operation process is ensured to be effective, and the safety of the system is improved.
7. The system of claim 3, wherein the permanent magnet shaft generator switch control system for side-push power supply comprises: the normally open contact of the fourth relay is closed after being delayed for 3 seconds and is connected with the normally closed contact of the fifth relay in series, so that the control protection module of the shaft generator control system has 3 seconds of time to ensure that the protection function of tripping a power supply switch of the shaft generator caused by abnormal triggering of the direct-current busbar voltage of the frequency converter of the shaft generator is overridden before the actual starting of the side thrust; after the 3-second delay, the side-push starting is carried out, the side-push starting process is 10 seconds, the delay of the third relay is set to be 20 seconds, namely the normally closed contact of the third relay is disconnected after 20 seconds, the override of the protection function of tripping the shaft generator power supply switch triggered by the abnormal direct-current bus bar voltage of the shaft generator frequency converter is removed, and the air switch of the shaft generator is ensured not to be tripped in the side-push starting process.
8. The system of claim 3, wherein the permanent magnet shaft generator switch control system for side-push power supply comprises: after the side push normally operates, a side push operation signal BTR sent by the side push control system is closed, the fifth relay is electrified to act, the normally closed contact of the fifth relay is disconnected, and a side push starting permission signal of the side push control system is cancelled.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911226163.0A CN111463823B (en) | 2019-12-04 | 2019-12-04 | Permanent magnet shaft generator switch control system for side-pushing power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911226163.0A CN111463823B (en) | 2019-12-04 | 2019-12-04 | Permanent magnet shaft generator switch control system for side-pushing power supply |
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| CN111463823A true CN111463823A (en) | 2020-07-28 |
| CN111463823B CN111463823B (en) | 2023-06-09 |
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| CN202424597U (en) * | 2011-12-05 | 2012-09-05 | 大连海事大学 | Starting device for main electric motor of ship bow thruster |
| CN103825358A (en) * | 2014-03-14 | 2014-05-28 | 中国船舶重工集团公司第七0四研究所 | Hybrid power ship power supply control system with reversible shaft generator |
| CN203864987U (en) * | 2014-04-14 | 2014-10-08 | 重庆新世纪游轮股份有限公司 | Electric propulsion control system for ship |
| CN107147103A (en) * | 2017-07-13 | 2017-09-08 | 中车永济电机有限公司 | Electrical Propulsion Ship direct current networking power system |
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2019
- 2019-12-04 CN CN201911226163.0A patent/CN111463823B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202424597U (en) * | 2011-12-05 | 2012-09-05 | 大连海事大学 | Starting device for main electric motor of ship bow thruster |
| CN103825358A (en) * | 2014-03-14 | 2014-05-28 | 中国船舶重工集团公司第七0四研究所 | Hybrid power ship power supply control system with reversible shaft generator |
| CN203864987U (en) * | 2014-04-14 | 2014-10-08 | 重庆新世纪游轮股份有限公司 | Electric propulsion control system for ship |
| CN107147103A (en) * | 2017-07-13 | 2017-09-08 | 中车永济电机有限公司 | Electrical Propulsion Ship direct current networking power system |
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| CN111463823B (en) | 2023-06-09 |
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